Moorhead - A new study finds Minnesota groundwater is contaminated with low levels of chemicals. It's the first study to examine groundwater across Minnesota for "chemicals of emerging concern."
Researchers tested 40 shallow wells for 92 contaminants. They found 20 different contaminants. One or more chemicals were found in about one-third of the sampled wells.
Minnesota Pollution Control Agency scientist Sharon Kroening says the chemicals come from products like medications, detergents, insect repellents and fire retardants.
The most chemicals were found at wells near landfills. Researchers also found a higher incidence of chemicals in wells near residential areas with septic systems. The state Health Department will set an exposure limit for emerging chemicals.
The $400,000 study was paid for by the Minnesota Legacy Fund.